Request: include action button state in share link

[scottmcm]

It's really nice that I can look at LLVM-IR or ASM or … on the playground.

But sadly, when I get a share link https://play.rust-lang.org/?version=nightly&mode=release&edition=2021&gist=ceb427b607c3f033c94a0b7541f35dda, it doesn't include the button state, so whoever opens it ends up just on "Build" (or "Run") instead.

When I'm trying to show something in the MIR, it would be nice if I could get a share link that opens to "MIR ►", rather than something where when they Ctrl-Enter it just says "yup, it compiled" (essentially).

[shepmaster]

In general, this wouldn't be terribly hard to do. If someone wants to contribute, it should mostly be a matter of copy/pasting how things like the edition flow into the gist state and are serialized to/from the URL.

The main ergonomic issue is that we don't have a way to go back from a manually-selected action to the automatic "do what feels right" action. Adding this feature will make it more likely for people to get into that state, especially without actively making the decision to do so.

[bp7968h]

Hi @shepmaster, I would love to work on this but I have some confusion, if you could guide me that would be great. Below are my understanding:

• We create GitHub gist, only if the user clicks on the Share button.
• So, tracking the state of buttons, how is this achievable as we send the whole content of the code as a api request and create a gist

I am not sure if this is a good idea, but we can use the filename to track some state. We currently use rust_playground.rs as the current file in the GitHub gist, we can embed the button status in the filename itself and then extract that and update the frontend button state using that.

Can you give me some suggestions, to working on this please.